Exhaust-silencer.



J. F. SPIEGEL.

EXHAUST SILENCER.

APPLICATION FILED FEB. 9. 1914.

Patented Aug. 24, 1915.

- Q/Vihwooeo M. $.M5d3w JLA M M UNITE STATES PATENT OFFICE.

JOSEPH 1. sunset, or eALn'roN, PENNSYLVANIA, AssreNonor ONE-FOURTH ro AUeUs'rUs on IBABCBIEBI AND ONE-FOURTH ro JOHN E. 'mLLoN, BOTH or GALETON,

rnNNsYLvAm EXHAUST-SILENCER.

Application filed FebruaryB, 1914. Serial 11o. 817,584.

To all whom it may concern;

A Be it known that .I, J osnrn F.- Srmcnn, a

citizen of the United States, residing at 'Galeton, the county of Potter,- State of Pennsylvania, havejinvented certain new and useful Inipr'ovements' in Exhaust- Silencers; and I do hereby declare the following to be afull; clear, and exact de ,SCI'lPtlOIl of the invention, such. as Wlll enpertains'to makeand use the same.

plosive engines.

able others skilled in the art to which it ap- This invention relates to silencers for'ex- The object of the invention resides in the provision of a silencer embodying animproved construction whereby the gases in their passage. through the sllencertothe atmosphere will constantly move mto a larger space so as to permit same to expand to an extent that will eliminate the sudden impact of'the gases against the atmospheric pressure whereby the silencing is rendered exceptionally effective. 7

A' further ob'ect of the invention resides. in the provision of a silencer which em bodies an improved construction whereby the passage of the exhaust gases therethrough is retarded only slightly w th the result that verylittle back pressure is created and the efliciencyof the engine thereby maintained. at a maximum.

' With the above and other objects in view the inventionconsists in the details of con- I struction'and the arrangement and combination of parts to be vhereinafter more A fully describedand particularly pointed out.

I to

v In describin lithe invention in detail in theappended claims.

reference will behad to the accompanying drawings wherein like characters of refer- ",ence denote correspondingparts in the severalviews, and in whichv I Fig ral, is a longitudinal section through a silencergconstructed' in accordance with the; 'invention;,Fig..2, a section on the line 2- -2 of Fig.1; "Fig. 3,; a view lookmg at the mtake end of the silencer; and 'Fig.- 4, a fra mental perspective view of one of the be 0 plate sections em loyed in the silencer.

Referrin' *tot 'e. drawings the improved silencer is as comprising a cylindr l an inwardly convexed portion 11 for a pur.

end of the casing is provided with a series of tapering outlets 12 arranged in a circle concentric with, respect to the longitudinal axis of. the casing 10. These outlets 12 communicate with and support an annular pipe 13 and leading from this pipe 13 at intervals'are exhaust pipes 14.

, cumscribing ring 16 having perforations 17 to permit the passage of gases therethrough and provided with securing flanges 18 for sulta 1e connection with the casing 10 and member 15. The minor end of the member A is threaded as at 19 whereby the silencer may be readily connected to the exhaust pi e of an explosive engine. Mounted within t e membervla is a plurality of rings 20, "said rings being'secured in a suitable manner to the inner wall of the member 15. Plates .22 are secured to rings 20 by flanges 21, Sflld plates extending ,ctransverselyof the member 15 and are disposed substantially in parallel spaced relation. It will be noted "that the plates 22 supported between one pair of rings 20 are disposed at right angles to the plates 22 su ported by the next pair of rings so that the exhaust gases between any two plates of one series when leaving the space between said plates will distribute between all of the plates in the next series thereby distributing the pressure throughout the member 15. Each ofthe plates 22 has struck therefrom bafile tongues 23 and 21, disposed respectively in outward and inward inclination, the free edge of the tongue 23 carried by the limiting plates 22 following the contour of the memer 15 'and'being slightly spaced therefrom. The action of the tongues 23 and 24 during the passage of the gases through the silencer serves as an aid for equally distributing said gases over the whole area of the major end of the member 15 before said gases are delivered to the interior of the casing 10 where 7 they will have opportunity to expand before discharge to the atmosphere by way of the outlets 12, pipe 13 and pipes 14. casing-10 oneend of which is provided with What is claimed is:-- 1. A silencer for explosive engines comprising an expansion casing having a discharge opening in one end, a tapering tubular member inounted-in the casing and having its inner end engaged through the dischar e end of the expansion casing and provide with means for connection to an. exhaust pipe, a plurality of series of transverse plates mounted in the tapering member with the plates of one series disposed transversely of the plat. eof the adjacent series, and oppositely inclined baflle tongues v struck from each plate. 7

2. A silencer for explosive engines comprising an expansion casing having an annular series of tapering outlets in one end, a circular pipe supported by said outlets and communicating therewith, a lurality of exhaust pipes leading'from said circular pipe, a tapering tubular member mounted in the casing and having its inner end engaged through the discharge end of the expansion casing :and provided with means for connection to an exhaust pipe, a plurality of series of transverse plates-mounted in the tapering member with the plates of one series disposed transversely of the plates of the adjacent series, and oppositely inclined baflle tongues struck from each plate.

3. A silencer for explosive engines comprising an expansion casing having a discharge opening in one end, a ta ering tubular member in the casing and extending from end to end thereof, the walls of said tubular member being spacedfrom the easingthroughout, the inner end of said tubular member being engaged through the discharge end of the casing and'provided with means for connection to an exhaust pipe, a plurality of series of transverse plates mounted in the tubular member with the plates of one series disposed transversely of the plates of the adjacent series, and opposiltely inclined tongues struck from each ate.

p In testimony whereof, I afiix my signature, in the presence of two witnesses.

JOSEPH F. SPIEGEL. Witnesses:

W. H. Hoax, W. F. RUGABER. 

